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* vax-dis.c (entry_mask_bit): New array.

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(print_insn_vax): Decode function entry mask.
This commit is contained in:
Alan Modra 2005-03-09 13:08:26 +00:00
parent 4184909a51
commit 220abb21d1
2 changed files with 44 additions and 2 deletions
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7
opcodes/ChangeLog
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@ -1,3 +1,8 @@
2005-03-09 Jan-Benedict Glaw <jbglaw@lug-owl.de>
* vax-dis.c (entry_mask_bit): New array.
(print_insn_vax): Decode function entry mask.
2005-03-07 Aldy Hernandez <aldyh@redhat.com>
* ppc-opc.c (powerpc_opcodes): Fix encoding of efscfd.
@ -8,7 +13,7 @@
2005-03-03 Ramana Radhakrishnan <ramana.radhakrishnan@codito.com>
* opcodes/arc-dis.c: Add enum a4_decoding_class.
* arc-dis.c (a4_decoding_class): New enum.
(dsmOneArcInst): Use the enum values for the decoding class.
Remove redundant case in the switch for decodingClass value 11.

39
opcodes/vax-dis.c
View File

@ -1,5 +1,6 @@
/* Print VAX instructions.
Copyright 1995, 1998, 2000, 2001, 2002 Free Software Foundation, Inc.
Copyright 1995, 1998, 2000, 2001, 2002, 2005
Free Software Foundation, Inc.
Contributed by Pauline Middelink <middelin@polyware.iaf.nl>
This program is free software; you can redistribute it and/or modify
@ -34,6 +35,21 @@ static char *reg_names[] =
"r8", "r9", "r10", "r11", "ap", "fp", "sp", "pc"
};
/* Definitions for the function entry mask bits. */
static char *entry_mask_bit[] =
{
/* Registers 0 and 1 shall not be saved, since they're used to pass back
a function's result to it's caller... */
"~r0~", "~r1~",
/* Registers 2 .. 11 are normal registers. */
"r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11",
/* Registers 12 and 13 are argument and frame pointer and must not
be saved by using the entry mask. */
"~ap~", "~fp~",
/* Bits 14 and 15 control integer and decimal overflow. */
"IntOvfl", "DecOvfl",
};
/* Sign-extend an (unsigned char). */
#if __STDC__ == 1
#define COERCE_SIGNED_CHAR(ch) ((signed char)(ch))
@ -140,6 +156,27 @@ print_insn_vax (memaddr, info)
buffer[1] = 0;
}
/* Decode function entry mask. */
if (info->symbols
&& info->symbols[0]
&& (info->symbols[0]->flags & BSF_FUNCTION)
&& memaddr == bfd_asymbol_value (info->symbols[0]))
{
int i = 0;
int register_mask = buffer[1] << 8 | buffer[0];
(*info->fprintf_func) (info->stream, "Entry mask 0x%04x = <",
register_mask);
for (i = 15; i >= 0; i--)
if (register_mask & (1 << i))
(*info->fprintf_func) (info->stream, " %s", entry_mask_bit[i]);
(*info->fprintf_func) (info->stream, " >");
return 2;
}
for (votp = &votstrs[0]; votp->name[0]; votp++)
{
register vax_opcodeT opcode = votp->detail.code;